Chaeles taylor



(No' Model.)

UTAYLOR.

APPARATUS FOR BURNING GOAL SLACK.

Patented Jan. 31,1882.

JZWVQMA.

fi w A N. PETERS. PholwLilhngnpher, wmun wn. u c.

CHARLES TAYLOR, OF NIMV YORK, ASSIGNOR 'IO HENRY L,

aren't amen.

VAN SYOKEL AND CHAS, G. TlLL,'OF BROOKLYN, N. Y.

APPARATUS FOR BURNING COAL-SLACK.

SPECIFICATION forming part of Letters Patent No. 252,910, dated January 31, 1882.

Application filed June 2,1880. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES TAYLOR, of

the city of New York, in the county and State of New York, have invented certain new and useful Improvements in Apparatus for Burn:

with a steam-boiler furnace, of pipes for intro ducing air and spraying water below the grate,

valves in said pipes for controlling the passage of air and waterthrough them, and a press ure-regulator for simultaneously opening and closing said valves, thereby automatically controlling the supply of air and water.

In the accompanying drawings, Figure I represents a transverse section of a boiler-furnace, and a side view, partly in section, of devices combined therewith for producing an airblastand an injection of water into the furnace; 0 and Fig. 2 represents a plan of'a portion of a grate which I prefer to employ.

Similar letters of reference designate corresponding parts in both figures.

A designates a boiler, here shown as of the return-tubular type, though any other form of boiler may be used.

B designates the furnace, Bthe ash-pit, and O the grate. Although other forms of grate may be used, the grate which I prefer to employ, and have here represented, has isolated lozenge-shaped openings 3, with ribs arranged obliquely and parallel with each other, as shown by dotted lines in Fig. 2. The openings s afford provision for the free passage of air, and from their shape preventthe coalslack .from falling through them.

D designates a pipe for conveying air from any source of supplysuch for instance, as a fan-blower,E-to the furnace under the grate 50 O; and F designates a throttle-valve in said pipe, by which the passage of air through it may be regulated.

Gr designates a pipe for conveying water from any suitable source of supply under a suitable pressure to the furnace under the grate, and communicating in the ash-pit B with a suitable spraying device, shown as consisting ofa rose-sprinkler, G, so arranged that air entering through the pipe D will become charged with moisture.

In the water-pipe G is a valve, H, here shown as consisting of a throttle-valve similar to the valve F in the air-pipe D, and both said valves are shown as very long, so that a slight movement will close or open them, and are elliptical in form to fit the pipe.

The supply of water and air to the furnace 'are both automatically controlled by the pressure of steam, and to effect this I employ a pressure-regulator, I,comprisin-g adiaphragm, 0, below which steam is admitted through a pipe, I), and a weighted lever, J, which is raised or lowered by the action of the steam upon the diaphragm a. The lever J, through a suitable connection, 0, operates the throttlevalve H in t A. vater-pipe G, and through another connection, 07, operates the valve Fin the pipe D.

When the pressure of steam decreases the lever J falls and opens both the air and watervalves, increasing the draftand causing more rapid combustiong'but when the pressure of steam increases beyond the desired point the supply of water and air is simultaneously decreased. It will .be seen that the amount of water entering the furnace may thus be made proportionate to the amount of air.

In lieu of the regulator I, I may employ a pressure-regulator of any desired construction.

The coal slack or dust is first moistened by the spraying device G or other means to give it sufficient adhesion to cause it to lie upon the grate and prevent its falling through the openings therein, and the air-blast is then set in operation to produce a draft. The air is moistened as it enters the furnace, and, the water 5 which is held in suspension becoming decomposed, the hydrogcn combines with the sulphur contained in the coal and produces'a very intense combustion.

' I am aware that water has been sprayed Ioo upon the top of fuel andin front ofa fire-place prior to placing it upon the grate; but in such case the water is not carried through the grate and fuel bytlie air-blast, as in my invention.

hat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a steatnboiler furnace, of pipes for introducing air and spraying water below the grate, valves in said pipes for controlling the passage of air and water through them, and a prcssure-regulator for simultaneously opening and closing said valves, whereby' the supp'; of air and water is automatically and uniformly regulated, substantially as specified.

5 2. The combination, with steam-boiler fursnpplying air said regulator and valves 20 CHAS. TAYLOR. Witnesses:

ADAM H ENS,

MICHAEL HENS. 

